I'm guessing that when you reset one of these you want the fine control set in the middle of it's range? I've been needing to get a fermentation chamber to better control the temp of my beer, I think I'll try this.

This is GREAT information...I would think by now you would no longer be the "assistant brewer"...nice posting. I have a commercial chest freezer that I salvaged from a supermarket that has fridge and freezer capability.

Here's what the thermostat looks like on my Magic Chef 10cf chest freezer. I set the normal temp control dial to its midway point them used the coarse adjustment screw seen in the pic to bring the temp range up. Nothing scientific, I just screwed it in 4 or 5 full turns and let the freezer run overnight. Got pretty lucky. It was right at 37 degrees.